What should you do if you discover that the coolant in the vehicle radiator needs topping up during a long journey? What should you do if you discover that the coolant in the vehicle radiator needs topping up during a long journey?

• Possible answers:

   
• A. Hose down the engine to cool it before refilling
• B. Let it cool before removing the filler cap
• C. Keep the engine running and fill it with coolant immediately
• D. Keep driving, as the fan will cool the engine